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Related Experiment Video

Updated: May 25, 2026

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication

Published on: February 6, 2019

Does alcohol consumption really affect asymmetry perception? A three-armed placebo-controlled experimental study.

Lewis G Halsey¹, Joerg W Huber, Jennifer C Hardwick

¹Department of Life Sciences, University of Roehampton, London, UK. l.halsey@roehampton.ac.uk

Addiction (Abingdon, England)

|January 21, 2012

Summary

Alcohol impairs the ability to detect facial symmetry, but does not affect preference for symmetrical faces. Gender influences symmetry preference in alcohol-dosed individuals.

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Area of Science:

Psychology
Perception
Human Behavior

Background:

Alcohol consumption is often linked to altered perceptions of attractiveness.
Reduced ability to perceive facial asymmetry may explain increased attractiveness ratings under alcohol influence.

Purpose of the Study:

To investigate if alcohol consumption impairs the ability to detect facial symmetry.
To examine alcohol's effect on facial symmetry preference.
To control for other potential explanations for altered attractiveness perception.

Main Methods:

Random allocation experiment with three groups: alcohol-dosed, placebo, and control.
Participants judged facial symmetry preference and detection accuracy.
Collected data on concentration, personality, demographics, and psychological factors.

Main Results:

No significant difference in symmetry preference across groups.
Non-alcohol-dosed participants were better at detecting facial asymmetry.
Alcohol-dosed females showed greater symmetry preference than males.

Conclusions:

Alcohol consumption subtly reduces the ability to perceive bilateral facial asymmetry.
Gender may moderate the effect of alcohol on facial symmetry preference.